Element for performing sports facility stands and sports faility stand performed by means of said element

ABSTRACT

A component ( 1 ) for implementing a stand for sport venues, such as for example stadia and/or sports halls, said component ( 1 ) comprising at least a main module apt to be placed upon a bearing structure ( 7, 24 ) as to implement a portion of a big step of said stand, said main module having a substantially L-like or Z-like cross-section and thus comprising in a first case a first substantially flat tread portion ( 1   p ) apt to be stepped on by the spectators and a second substantially flat riser portion ( 1   a ) extending from said tread portion and defining with said tread portion a predefined angle, and in a second case a first substantially flat tread portion ( 1   p ) apt to be stepped on by the spectators, as well as a first and a second substantially flat riser portion ( 1   aa ) and ( 1   ab ) extending from opposite ends of said tread portion and defining with said tread portion each one a predefined angle, said main module comprising an upper plate ( 2 ) and a lower plate ( 3 ), both made of metallic sheet, mutually joined and substantially shaped like a L or a Z.

TECHNICAL FIELD OF THE PRESENT INVENTION

The present invention places in the technical field related to the implementation of apparatuses for sport venues such as for examples stadia, football pitches, sports halls and/or the like. In particular, the present invention relates to the implementation of stands for sport venues of the type mentioned previously. In detail, the present invention relates to an innovative component or module for the implementation of stands for sport venues or the like.

DESCRIPTION OF THE STATE OF THE ART

In the field of the implementation of apparatuses for sport venues such as for example stadia, football pitches, sports halls and/or the like, different solutions are known and used. According to the most part of the known solutions, the stands for sport venues of the type mentioned previously are implemented by using pre-fabricated modules in reinforced concrete apt to define so-called big steps whereupon in case seats are then arranged or which simply define surfaces apt to define seating places. Such pre-fabricated modules made of reinforced concrete usually are positioned on a main bearing structure implemented in reinforced concrete too or even in steel or other materials. The bearing structure typically is constituted by columns or vertical walls supporting, in turn, sloped beams thereupon the modules made of reinforced concrete are positioned and fixed. The sloped beams usually are parallel and placed at a distance comprised between 7.50 and 12 m, even if the distance between two adjacent sloped beams is established according to the needs and/or circumstances.

The pre-fabricated modules have a pre-defined shape, in particular a pre-defined cross-section and they are designed and implemented to support both their own weight and the weight of the spectators taking part in an event. Furthermore, the cross-section must be planned to satisfy determined criteria of deformation caused by the vibrations so as to guarantee comfort and safety for the spectators sitting onto the stands. For example, the horizontal portion or “tread” of the big steps can be slightly sloped to ease the draining or outflow of the rain water, as well as to ease cleaning of the stands at the end of an event. Said tread has to be further designed so as to define a space for the seating places (in case for the seats), as well as walkway corridor in front of the seating places or seats. The vertical portion or “riser” of the big steps constitutes the rear or resting portion of the big steps and thereon the brackets for fastening the steps are generally fastened.

The solutions known in the state of art utilizing prefabricated modules made of reinforced concrete have several problems and disadvantages. One first considerable disadvantage is related to the prefabricated modules' own weight which usually corresponds to 400 kg/sm. Such own weight per volume unit requires to implement an adequate supporting structure, with considerable increase in related costs and implementation time. In fact, in case one implements a supporting structure made of reinforced concrete too, adequate seasoning time is to be provided. Furthermore, individual moulds have to be arranged wherein the concrete in the fluid state is cast. Another disadvantage due to the reinforced concrete prefabricated modules' high own weight is related to the difficulty in moving said modules, therefor suitable apparatuses (cranes and trucks with considerable sizes) are necessary involving a considerable and often too high utilization cost. Still by referring to the solutions making use of prefabricated modules made of reinforced concrete, among the additional problems and disadvantages typical of these solutions, the dangers deriving from the implementation of stands of this type in areas with high seismic risk are to be mentioned. Yet still, the modules made of prefabricated reinforced concrete involve additional problems when, on the stands' big steps implemented by means of said modules, additional apparatuses have to be fastened, such as seats, small chairs or the like. In fact, the installation of the seats requires to perforate in advance the modules in predefined positions as well as the use of expansion or chemical stoppers for fastening the seats' supporting plates to the big steps; however, the precision required for defining the perforation sites involves a huge time waste with a corresponding increase in the involved costs. The same is valid for applying the expansion or chemical stoppers in the implemented perforations or holes.

Moreover, solutions for implementing stands for sport venues are known to the state of art, utilizing materials different from concrete, such as for example steel, zinc-coated or painted iron and/or similar materials. For examples, solutions are known making use of components such as tubes, joints, pivots or others wholly similar to those used for implementing scaffoldings. However, these solutions offer neither required safety nor comfort and often they cannot be proposed due to their definitely rough aesthetical aspect. Other solutions making use of steel and/or iron and/or similar metals had not allowed to overcome in a satisfactory way the drawbacks typical of the solutions made of reinforced concrete. Several of these solutions show the same problems in terms of scarce motion easiness, excessive own weight, assembling difficulty and not satisfying final aspect. Among the various known solutions in the state of art making use of components made of steel or iron or similar metals, those described in the documents U.S. Pat. No. 7,047,699, U.S. Pat. No. 5,159,788 and WO2010/028476, US 2006/150540 A1 and G 2 463 445 A can be mentioned.

Therefore, an object of the present invention is to obviate the drawbacks mentioned previously and found in the solutions known in the state of art. In particular, the objects and aims of the present invention can be summarized as follows.

To propose a solution related to a module for the implementation of stands with big steps which has its own reduced weight, which is then easy to handle, which is resistant and able to support suitable loads, which can be implemented in a simplified way and with reduced costs, which is easy to be assembled and that is which can be assembled by means of relatively simple and quick operations and therefore with contained costs, which is easy to be moved (raised, transported, etc.), which has a pleasant aspect compatible with the aesthetical needs of venues of a certain prestige, which offers the adequate guarantees in terms of safety and comfort for the spectators. An additional object of the present invention is then to offer a solution allowing to implement a prefabricated module in metal for implementing stands for sport venues which can be implemented by using traditional materials which can be processed even non-industrially. An additional object of the present invention is to suggest a module with predefined shape and size, which is then interchangeable and usable for implementing stands with different sizes. The module shape according to the present invention will further have to allow constraining mutually two adjacent modules in a simple and quick way and without requiring the use of special and expensive anchoring means. The module will further have to be able to be produced in different formats according to the needs or circumstances and the format change without involving drastic and important changes in the production and/or implementation process.

The objects and aims mentioned and described previously will be achieved by means of a component according to the embodiments claimed in the main claims 1 and 14. Additional advantages will be then offered by the embodiments of the present invention claimed in the depending claims.

DESCRIPTION OF THE PRESENT INVENTION

The present invention finds particular and advantageous application in the implementation of apparatuses for sport venues such as, for example, stadia, football pitches or the like. In particular, the present invention finds particular and advantageous application in the implementation of stands for venues of the type mentioned previously. For this reason, examples will be described hereinafter wherein the present invention is used for implementing stands for sport venues. However, it is to be noted that the possible applications of the present invention are not limited to the implementation of stands for sport venues. On the contrary, the present invention finds particularly advantageous application in all cases wherein the implementation of a structure with big steps is required, even not assigned to receive public or people. In fact, the present invention allows implementing systems and/or structures with big steps (even not in the sporting field) with low costs, by taking materials available on the market, according to a simplified manufacturing and assembling process and with practically zeroed size and alignment or positioning tolerances.

The present invention bases upon the general concept that the disadvantages or drawbacks typical of the known solutions in the art (in particular the prefabricated modules made of reinforced concrete) can be overcome or at least minimized by implementing a component comprising at least a main module apt to be placed upon a bearing structure to as to implement a portion of a big step, said main module having L and Z-like cross-section and thus comprising a first tread portion defining a substantially flat surface and apt to be stepped on and a second riser portion comprising a flat surface and extending from said tread portion and defining with said tread portion a predefined angle, said main module comprising an upper foil or plate and a lower foil or plate, both made of metallic sheet and shaped like a L and mutually joined so as to define said tread and riser portions, each one of said tread and riser portions comprising an inner space comprised between corresponding portions of said upper and lower foils or plates.

An additional consideration whereupon the present invention is based is related to the fact that additional advantages could be obtained by arranging connecting metallic members in said inner spaces so as to connect mutually said upper and lower plate and/or filling up at least partially with a polyurethane foam said inner space and/or if said main module comprises a first engagement portion of male type and a second engagement portion of female type apt to house an engagement portion of male type and/or if said engagement portion of male type extends from the free end of said first riser portion opposite to said tread portion and said engagement portion of female type is obtained in an end portion of said tread portion opposite to said riser portion and/or when said first engagement portion extends from a portion of metallic sheet of said riser portion joining said lower and upper plates and/or when said second engagement portion of female type is defined by a lowering of said lower plate obtained near the free end of said tread portion opposite to said riser portion and/or when said main module comprises metallic reinforcing members applied to said upper and lower plates, respectively, at the opposite end portions of said main module and placed inside the inner space of said tread portion and/or when two first metallic reinforcing members are connected to said lower and upper plates, respectively, at the first end portion of said main module and two second metallic reinforcing members are connected to said lower and upper plates, respectively, at the second end portion of said main module opposite to said first end portion and/or when said first metallic reinforcing members are mutually connected therebetween by means of cross steel members, and/or when said second reinforcing metallic members are mutually connected one to another by means of steel cross members and/or by using a first infilling stopper inserted at least partially between said upper and lower plates so as to infill a first end portion of said main module and/or a second infilling stopper inserted at least partially between said upper and lower plates so as to infill a second end portion of said main module opposite to said first end portion, so as to prevent rain water infiltrations or the like inside said inner space and/or when said first and second infilling stoppers comprise, each one, a portion localized outside said inner space of said main module and/or when said first and second infilling stoppers comprise, each one, a cross lowering obtained in said outer portion.

The present invention bases upon the additional general concept that the disadvantages or drawbacks typical of the solutions known in the art (in particular of the prefabricated modules made of reinforced concrete or even metallic material) can be overcome or at least minimized by implementing a component comprising at least a main module apt to be placed onto a bearing structure so as to implement a big step portion of said stand, said main module having substantially Z-like cross section and thus comprising a first tread portion defining a substantially flat surface apt to be stepped on by the spectators, as well as a first riser portion and a second riser portion, both comprising a substantially flat surface and extending from opposite ends of said tread portion so as to define, each one, with said tread portion a pre-defined angle, said main module comprising an upper plate and a lower plate, both made of metallic sheet and with substantially Z-shape wherein said upper and lower foils are mutually joined so as to define said tread and riser portions, said tread and riser portions comprising, each one, a corresponding inner space comprised between corresponding portions of said upper and lower foils or plates.

Additional advantages will be obtained by means of the component embodiments according to the present inventions specified in the depending claims.

BRIEF DESCRIPTION OF THE FIGURES

The present invention will be explained hereinafter by means of the description of some embodiments thereof represented in the enclosed drawing tables. However, it is to be noted that the present invention is not limited to the embodiments represented in the drawing tables; on the contrary, all variants and modifications of the represented embodiments which will appear clear, obvious and immediate to the person skilled in the art, belong to the scope and aim of the present invention. In particular, in the enclosed drawing tables:

FIG. 1 relates to an axonometric and partial cross view of a component according to a first embodiment of the present invention;

FIGS. 1 a to 1 b related to as many section views of a component according to the present invention;

FIG. 2 relates to an axonometric and partial section view of a component according to the present invention positioned upon a supporting structure;

FIG. 3 relates to an axonometric view of a stand portion implemented by means of the component or module according to the present invention;

FIG. 4 relates to an axonometric view of a detail of FIG. 3;

FIGS. 5 and 6 relate to as many side views, in partial section, of two examples of stands implemented by using the module according to the present invention;

FIG. 7 relates to a side view of two portions of as many components according to the present invention fastened one to the other one;

FIG. 8 shows an axonometric view of the mutual hooking or fitting-in of two components according to the present invention;

FIG. 9 shows an axonometric view of a solution for the mutual fastening of two components according to the present invention;

FIG. 10 relates to a section view of a detail in FIG. 9;

FIGS. 11 and 11 a show, each one, a side view in partial cross section of a component according to an additional embodiment of the present invention;

FIGS. 12 and 12 a show, respectively, a side view and an axonometric view of a plurality of components according to the embodiment of FIGS. 11 and 11 a assembled so as to form a stand portion;

FIGS. 13 and 13 a show views in longitudinal section according to the plane B-B of FIG. 11, of two components according to the embodiments of FIGS. 11 and 11 a;

FIGS. 13 b and 13 c show axonometric views and in partial cross section of two components according to the embodiments of FIGS. 11 and 11 a;

FIG. 14 shows some examples of size measurements of the component according to the present invention.

DETAILED DESCRIPTION OF SOME EMBODIMENTS OF THE PRESENT INVENTION

In FIGS. 1 and 1 a to 1 d the component according to the embodiment of the present invention represented therein is identified by the reference number 1. Said component 1 comprises a tread portion 1 p and a riser portion 1 a mutually positioned so as to give the component or module 1 a shape (cross section) like a L. The component 1 has a whole length L, a tread depth P and a riser height H. The component 1 is composed by the combination of an upper plate or foil 2 and a lower plate or foil 3. For example, according to the needs and/or circumstances, the upper and lower plates 2 and 3 can derive from, for example die-bent or zinc-coated, sheet coils the thickness thereof can be chosen according to the needs and/or circumstances, in particular according to the stiffness which one wants to confer to the component and depending upon the whole length L of the component itself. For example, the thickness of the upper and lower plates 2 and 3 can be equal to 30/10 mm. The upper and lower plates 2 and 3 can be mutually fastened one to another by means of components made of die-bent sheet 4 extending between the upper plate and the lower plate and in the direction of length L of the component 1. For example, the components 4 can have different shapes and/or cross-sections, such as for example like Ω, C, Z, etc. The upper plate 2 and lower plate 3 define then an inner space which in the embodiment of the present invention represented in the figures is filled up with polyurethane foam 5 or with similar materials injected in said inner space with the aim of dampening the footfall noises and vibrations due to the dynamic stresses. In case, a layer or neoprene 6 or of similar materials with pre-defined thickness (for example 10 mm) can be arranged below the component 1.

The tread portion 1 p of the component 1 can be treated with an anti-slip treatment 18, for example by means of subsequent applications (several coats) of resins and inert materials. In fact, it is to be noted that the tread portion 1 p is destined to be stepped on by the spectators, therefore the anti-slip treatment 18 allows increasing safety of the spectators themselves.

A first engagement portion of male type 16 projects from the free end portion (opposite to the tread portion 1 p) of the riser portion, whereas near the free end portion of the tread portion 1 p (opposite to the riser portion 1 a) an engagement or housing portion 17 is obtained, apt to be engaged by an engagement portion of male type 16, and then apt to house it. The engagement portion of male type 16 can be implemented, for example, by fastening on the free end of the riser portion 1 a a profile with suitable shape, for example a U-shaped profile. The engagement portion of male type could further extend on the whole length L of the component 1 or comprise profile portions positioned at pre-defined intervals and with pre-defined lengths. Alternatively, the engagement portion of male type 16 could be implemented by folding up properly one of the upper and lower plates 2, 3 or both of them. As to the engagement portion of female type 17, the same is implemented in the represented embodiment by folding up and thus by lowering the lower plate 3 and/or the upper plate 2 (see also FIG. 7 on this matter). The aim of the engagement portions 16 and 17 is to facilitate the mutual anchoring between two adjacent components (so as to define a first big step and an immediately upper big step, respectively); as to the implementation of the big steps and then of the stand one refers to the following description.

The scheme of FIG. 2 shows the component 1 rested and fastened to a supporting structure comprising a sloped beam 24 and a support (for example made of steel) 7 constituted by two plates with a thickness of 20 mm welded therebetween at the ends thereof 8 so as to form a L-shaped profile fastened, in turn, to the sloped beam 24. According to the length of the component 1 and of the provided loads, the same component 1 could be sustained by a variable number of sloped beams 24 and related supports 7. For example, solutions will be possible according thereto the component will be supported by two beams 24 positioned at the opposite free ends of the component 1, or even solutions wherein additional beams will be interposed between the end beams along the length of the component 1. The component 1 will be positioned with respect to the supporting beams as represented in FIG. 2 and that is so that the end portions of two adjacent components 1, destined to implement adjacent portions of the same big step, are supported and sustained by the same sloped beam 24. The component 1, in particular, is fastened to the support 7 by means of mechanical hooks 9 described more in detail hereinafter.

FIG. 3 shows a stand portion implemented by means of a plurality of components 1 according to the present invention. As it appears from FIG. 3, each component 1 is fastened to the underneath supporting structure as previously described, in particular to the tread portion 1 a of the component 1 rested on the horizontal (or substantially horizontal) portion of the support 7, and fastened to said horizontal portion by means of the mechanical hooks 9. Furthermore, the engagement portion of male type 16 of a component 1 will be housed in the engagement or housing portion of female type 17 of the subsequent component 1, in particular of the component arranged in the highest place and immediately after the previous component 1. In this way, the tread portion 1 p of each component 1 will define the portion which can be stepped on of a big step whereas the riser portion 1 a of a component 1 will define the resting or back portion of a big step. As anticipated previously, the components 1 can have lengths and sizes which can vary according to the needs and/or circumstances. In particular, components of type A (80×40 cm), that is with depth P of the tread portion equal to 80 cm and height H of the riser portion equal to 40 cm, as well as of type B (80×50 cm) or of type C (100×50 cm) or even of type D (100×62.50 cm) are provided. The length L of the components 1 could vary according to the needs or circumstances, the typical length being equal to 7.50 m. The sizes (cross-section) of the sloped beams 24, as well as the wheel base thereof, and the sizes of the support 7 will vary depending upon the sizes of the components (of the format thereof).

FIG. 4 is an enlargement of FIG. 3 and it represents big steps implemented by means of as many components 1, assembled by engaging the male portions 16 in the corresponding female portions 17. In FIG. 4 the layer of neoprene 6 (with thickness of 10 mm) applied to the lower surface (faced towards the supporting structure) of the lower plate 3, the anti-slip treatment 18 mentioned and described previously, as well as stoppers made of plastic material 23 applied at the housing and/or insertion holes 13 of the mechanical hooks 9 can be clearly recognized.

FIG. 7 shows in details some particulars of the component 1 according to the present invention, as well as mechanical hooks 9 used to fasten the components 1 to the underneath supporting structure, in particular to the sloped beams 24 and to the metallic supports 7. In particular from FIG. 7 it can be seen that in the inner space of each component 1, near the opposite end portions of the same 1, reinforcing metallic members 10 and 11 are inserted applied to the inner surfaces (faced towards the inner space) respectively of the upper plate 2 and of the lower plate 3. Said metallic reinforcements 10 and 11 in particular are inserted in the tread portion 1 p and have a predefined length (in the direction of depth P in the tread portion 1 a) substantially corresponding to (or slightly lower than) the depth P of the tread portion 1 p. Furthermore, the supporting members 10 and 11 have a predefined width (in the direction of the length L of the component 1) equal to about 80 mm. The thickness of the supporting members 10 and 11, for example, could be equal to about 12 mm. The two reinforcing members 10 and 11 are further mutually joined one to the other one by means of vertical members 12 made of steel welded to said supporting members 10 and 11; the number and the position of said vertical members 12 could vary according to the needs and/or circumstances. For example, the vertical members could be in even number and positioned at the connecting metallic members 4 (folded-up metallic sheets) interposed between the upper plate 2 and the lower plate 3. Alternatively, the connecting vertical members 12 could be in different number and be positioned in different positions with respect to the folded-up metallic sheets 4.

The function of the supporting metallic members 10 and 11 and of the vertical members 12 joining and connecting said supporting members 10 and 11 is to reinforce the component 1, in particular the opposite end portions thereof, in particular taking into consideration the loads thereto said end portions are subjected by the hooking systems 9 and thus with the aim of avoiding unwished folds and/or deformations.

As to the hooking systems 9, the same will be composed by a profile with octagonal shape 19 with a threaded inner (through or blind) hole, said profile with octagonal shape being interposed between the additional reinforcing members 10 and 11. A bolt 20 (for example of the type M24) is housed in a through hole obtained in the horizontal portion of the support 7, as well as in the neoprene layer, in the lower plate 3 and in the reinforcing member 11, so as to engage in the thread of the octagonal profile 19, a steel plate 21 and a flat washer 22 (both with a through hole) being interposed between the bolt 20 and the horizontal portion of the support 7. Even the upper plate of the component 1 in case will be equipped with through holes 13, each one apt to house a hooking system (bolt 20), said through holes 13 being then subsequently closed, once the assembly is complete, by means of corresponding stoppers (for example made of plastic) 23.

FIGS. 5 and 6 show some possible solutions offered by the component 1 according to the present invention related to the use of additional fittings such as seats, small chairs or the like. According to the solution of FIG. 5, the seats or small chairs are fastened to the tread portions 1 p of each component 1; in this case, the feet of a spectator seated upon a seat or small chair will find place in the tread portion 1 p of the underneath component 1, in particular between the underneath seat or small chair and the riser portion 1 a of the underneath component 1. On the contrary, according to the solution of FIG. 6, the seats or small chairs are fastened to the riser portions 1 a of the components 1, by means of suitable fastening and sustaining means; in this case, the feet of a spectator seated upon a small chair will find place in the tread portion 1 p of the same component 1 thereto the small chair is fastened, in particular between the small chair projection and the riser portion 1 a of the underneath component 1. The fastening of the small chairs to the components 1 according to the present invention is particularly eased by the fact that the components themselves are made of metal therefore different solutions become available on this matter, whereas in the case of components made of prefabricated reinforced concrete substantially only the solution making use of expanding or chemical plugs can be used. In particular, the small chairs could be fastened to the components 1 according to the present invention for example by means of welding, or by means of screw-fastening means or even by means of one of the typical solutions known to the person skilled in the art.

The detail of FIG. 8 shows one of the possible solutions according thereto one could proceed in assembling the components 1 according to the present invention, by fastening them to an underneath supporting structure so as to implement a stand (big steps of the same) or portions thereof. In a first phase the L-like supports 7 will be fastened to the underneath main beams 24. In case the beams themselves are made of non metallic materials (for example cement or wood), the supports 7 will be fastened to the beams 24 according to proper processes suitable to the aim. The components 1 are then subsequently positioned onto the main supporting structure so that the opposite end portions substantially coincide with the centre lines of the supports 7. To move the components 1 one could proceed, for example, in applying to the components 1 eyebolts or similar means thereon the chains' hooks will be subsequently fastened in order to fasten the components to a lifting and motion device such as for example a crane. With the component 1 positioned onto the supporting structure as just described, the same component 1 could be fastened to the structure itself by means of the previously described mechanical hooks 9 and then fastened to the structure itself by acting onto the bolts 20. Once fastened a first component 1, the subsequent component will be positioned and fastened substantially in the same way, however by making attention that the engagement portion 16 of male type of the just fastened component engages and is housed in the engagement portion of female type 17 of the component to be fasten (male/female quick hooking).

FIGS. 9 and 10, respectively, show an axonometric view and a section view of two components 1 according to the present invention arranged one adjacent to the other one (side by side so as to form a portion of a same stand step). From FIGS. 9 and 10 it appears clear that in order to avoid infiltrations for example of rain water or atmospherical agents or even dirty, the opposite ends of each component 1 are closed by means of stoppers made of plastic material 14 inserted partially into the inner space of the component 1, between the upper plates 2 and 3. The stoppers 14 substantially will have the same L-like shape of the components 1 and they will comprise then, too, a tread portion inserted into the tread portion of the respective component and a riser portion inserted partially in the riser portion of the respective component 1. The stoppers 13 will have a substantially U-like shape, with two prongs or branches partially inserted between the upper 2 and lower 3 plates. The branches or pronges could be then deformed to ease the insertion of the stopper in the component 1. The insertion depth of each stopper 14 will be defined by implementing lowerings on each one of the branches or pronges which will define abutment surfaces apt to abut with the upper and lower plates 2 and 3. Furthermore in the upper branch of each stopper 14 (in the outer portion of the inner space of the component 1) a lowering will be implemented extending in the direction of the depth P of the component 1, said lowering being apt to house fastening means 25 by means thereof a profile (for example made of plastic material) will be fastened to the opposite stoppers 14 of two components 1 arranged one adjacent the other or side by side to implement a portion of a stand big step. The fastening means or profiles 15 will further have the function of hindering the infiltration of the rain water or of the atmospherical agents or others, but even that of supporting the effects of the thermal expansion. The anchoring of the profile 15 can then alternatively take place only on one stopper 14, to allow the horizontal motion due to the thermal expansion. The profile 15 could further have a slightly rounded surface so as to avoid obstacles or steps and in case treated with an anti-slip treatment similar to the anti-slip treatment of the components 1.

An additional embodiment of the component or module according to the present invention will be described hereinafter by referring to FIGS. 11, 11 a, 12, 12 a, 13 and 13 a to 13 c; in FIGS. 11, 11 a, 12, 12 a, 13 and 13 a to 13 c the component/feature portions of the component according to the present invention already described previously by referring to other figures, are identified by the same reference numbers.

In FIGS. 11, 11 a, 12, 12 a, 13 and 13 a to 13 c the component according to the embodiment of the present invention represented therein is still identified by the reference number 1. By firstly referring to FIGS. 11 and 11 a, it can be seen in particular that said component or module 1 differs from the component 1 according to the embodiments of the present invention described previously, as the component 1 according to the present embodiment still comprises a tread portion 1 p, but not already one single riser portion, on the contrary two riser portions 1 aa and 1 ab mutually positioned so as to give the component or module 1 a substantially Z-like (cross-section) shape. In particular, the two riser portions 1 aa and 1 ab extend from two opposite ends (in the direction of the tread depth P) of the tread portion 1 p, along substantially parallel directions (but opposite directions) substantially perpendicular to the tread portion 1 p. The component 1 has then still a whole length L (perpendicularly to the plane of FIGS. 11 and 11 a), as well as a tread depth P. But the two riser portions 1 aa and 1 ab have equal riser heights respectively at h2 and h1, the sum of the values h1 and he being equal to the riser height H of the implemented big step or even the sum of the heights or measurements h2+h1′+d2 being equal to H. That is that each one of the riser portions 1 aa and 1 ab will contribute to define the real riser GP of the big step implemented by assembling properly (see hereinafter) at least two components or modules 1. The component 1 is composed by the combination of an upper foil or plate 2 and a lower foil or plate 3. Even in this case, according to the needs and/or circumstances, the upper and lower plates 2 and 3 can derive from sheet coils, for example die-folded and zinc-coated coils, the thickness thereof can be chosen according to the needs and/or circumstances, in particular according to the stiffness which one wants to give the component, and depending upon the whole length L of the component itself. For example, the thickness of the upper and lower plates 2 and 3 can be equal to 30/10 of mm. The upper 2 and lower 3 foils are shaped each one substantially like a Z. In particular, the upper foil 2 comprises a tread portion 2 p and two riser portion 2 aa and 2 ab extending from the opposite ends (still in the direction of the depth P) of the tread portion 2 p. In the same way, the lower foil 3 comprises a tread portion 3 p and two riser portions 3 aa and 3 ab extending from the opposite ends of the tread portion 3 p. The portions 2 p, 2 aa and 2 ab of the upper foil 2 are mutually oriented so as to give the foil itself 2 indeed a substantially Z-like shape. In the same way, the portions 3 p, 3 aa and 3 ab of the lower foil 3 are mutually oriented so as to give the foil itself 3 a substantially Z-like shape. Still more in details, the two riser portions 2 aa and 3 aa, respectively of the upper foil 2 and of the lower foil 3, are mutually arranged at a distance d1 one from the other one so as to define an inner space spx from the riser portion 1 aa. The two riser portions 2 ab and 3 ab, respectively of the upper foil 2 and of the lower foil 3 are mutually arranged at a distance d3 one with respect to the other one so as to define an inner space spz of the riser portion 2 ab. At last, the two tread portions 2 p and 3 p, respectively of the upper foil 2 and of the lower foil 3 are mutually arranged at a distance d2 one with respect to the other one so as to mutually define at a distance d2 one with respect to the other one so as to define an inner space spy of the tread portion 1 p. Obviously, the values of the three distances d1, d2 and d3 could vary according to the needs and/or the circumstances. For example, the three distances d1, d2 and d3 could be equal as in the case of the component 1 represented in FIG. 11, or different as in the case of one of the components 1 represented in FIG. 12, wherein at the tread portion 2 p the distance between the upper foil 2 and the lower foil 3 is constant along the whole tread portion 1 p. From FIGS. 11 and 11 a it can be further seen that the upper foil 2 comprises two opposite end portions 2 e 1 and 2 e 2 extending respectively from the riser portions 2 aa and 2 ab. In the same way, the lower foil 3 comprises two opposite end portions 3 e 1 and 3 e 2 extending respectively from the riser portions 3 aa and 3 ab. The upper foils 2 and 3 are then fastened one to the other one on one side at the end portions 2 e 2 and 3 d 2 and on the other one at the end portions 2 e 1 and 3 e 1. In particular, the end portions 2 e 2 and 3 e 2 at least partially are overlapped and mutually fastened one to the other one by means of so-called “button”-like 25; in the same way, the two end portions 2 e 1 and 3 e 1 at least partially are overlapped and fastened one to the other one even in this case by means of “button”-like weldings 25. Between the upper and lower plates 2 and 3 die-folded up sheet components 4 are housed extending between the upper 2 plate or foil and the lower plate 3 in the direction of the length L of the component 1 (perpendicularly to the plane of FIGS. 11 and 11 a). For example, the components 4 can have different shapes and/or cross-sections, such as for example like Ω, C, Z, etc. The upper 2 and lower 3 plates define then an inner space (in turn defined by the inner spaces spx, spy and spz described previously) which in the embodiment of the present invention represented in the figures is filled up with polyurethane foam 5 or similar materials injected in said inner space in order to lessen the footfall noise and the vibrations due to the dynamic stresses. Even in this case, below the component 1 a layer of neoprene or similar materials with predefined thickness (for example 10 mm) can be arranged.

The tread portion 1 p of the component 1 can further be treated even in this case with an anti-slip treatment 18, for example by means of subsequent applications (with several coats) of resins and inert materials. In fact, it is to be noted that the tread portion 1 p is destined to be stepped on by the spectators therefore the anti-slip treatment 18 allows to increase the safety of the same spectators.

A first engagement portion of male type 16 projects from the free end portion (opposite to the tread portion 1 p) of the riser portion 1 aa, whereas in the free end portion of the riser portion 1 ab (opposite to the riser portion 1 aa) a male engagement or housing portion 17 is obtained, apt to be engaged by an engagement portion of male type 16 and then to house it. The engagement portion of male type 16 can be implemented for example by fastening on the free end of the riser portion 1 aa a profile of suitable shape, for example a U-shaped profile. The engagement portion of male type could further extend for the whole length L of the component 1 or comprised profile portions positioned at predefined intervals and predefined lengths. Alternatively, as in the case represented in FIG. 11, the engagement portion of male type 16 could be implemented by folding up in a suitable way the end portions 2 e 1 and 3 e 1 respectively of the upper and lower plates 2. As to the engagement portion of female type 17, in the represented embodiment it is implemented too by folding up and then lowering the end portions 2 e 2 and 3 e 2 of the upper foil or plate 2 and of the lower plate or foil 3, respectively. The object of the engagement portions 16 and 17 also in this case is to facilitate the mutual anchoring between two adjacent components (so as to define a first big step and a second immediately higher big step, respectively); as to the implementation of the big steps and therefore of a stand one reverts to the previous description.

In the scheme of FIG. 12 the components 1 are shown connected one to the other one, whereas in the scheme of FIG. 12 a the same components 1 are shown rested and fastened to a supporting structure comprising a sloped beam 24 and a support (for example made of steel) 7.

With particular reference to FIGS. 13 and from 13 a to 13 b it is noted that the support 7 has a or cross-section like a “saddle” or an overturned U similar to the one described previously and then constituted by two plates with thickness of 20 mm welded therebetween at the ends thereof 8 so as to form a L-like profile, in turn fastened to the sloped beam 24. According to the length of the component 1 and of the provided loads, the same component 1 could be sustained by a variable number of sloped beams and related supports 7. For example, solutions will be possible according thereto the component 1 will be supported by two beams positioned at the free opposite ends of the component 1, or even solutions wherein additional beams will be interposed between the end beams along the length of the component 1. The typical wheel base between two adjacent sustaining beams is equal to m 8.00, wherein the whole length L of the big step will be equal to m 7.99. Moreover, different solutions will be possible according to the needs and/or particular circumstances providing wheel bases equal to m 4.00 or even intermediate wheel bases equal to m 6.00. In these cases the length L of the big step or component will be equal to m 3.99 and m 5.99, respectively. It is obvious that the lengths and the wheel bases mentioned above are valid even in the case of the L-shaped component. The component 1 will be positioned with respect to the supporting beams as represented in FIGS. 13, 13 a and 13 b and that is so that the end portions of two adjacent components 1 destined to implement adjacent portions of the same big step are supported and sustained by the same sloped beam and by the same support 7. The component 1 in particular is fastened to the support 7 by means of mechanical hooks, each one thereof comprises in this case a bushing with inner thread 1 f interposed between the upper foil 2 and the lower foil 3 wherein the outer thread of an anchoring bolt 1 b of type M16 engages, partially housed in through holes obtained in the support 7 and in the lower foil 3, respectively. In particular, the through holes made in the saddle-like support 7 to house the bolts 1 b could be slotted to compensate the possible thermal expansions. In order to ease the motion (discharge, loading, positioning, etc.) of the component 1, in some bushings 1 f, on the opposite side with respect to the bolt 1 b, eyebolts 1 g (FIG. 11) can be screwed, which comprise a ring apt to be engaged by a hook, for example by a crane. A washer 22 is further interposed between the bolt 1 b and the support 7. Furthermore, as represented in FIGS. 13, 13 a and 13 b a foil or layer of neoprene 6 with the thickness of about 10 mm (as in case of the L-like component according to previously described embodiment) can be provided between the component 1 (between the lower foil 3 thereof) and the saddle-like support 7. At last, and still as represented in FIGS. 13 and 13 a and 13 c 1 b, the opposite ends (n the direction of the length L of the component 1) are closed by means of metallic “stoppers” 14, each one constituted by a zinc-coated sheet foil with thickness of about 3.00 and thus having Z-like shape. In one or both said stoppers 14 one or more holes 1 ff will be provided to allow the injection of the polyurethane foam 5 therethrough.

In FIG. 13 c two components 1 are represented under pre-assembly condition, whereas FIGS. 12 and 12 a show a stand portion implemented by means of a plurality of component 1 according to the present embodiment of the invention. As it can be understood from FIGS. 12 and 12 a and 13 c, each component 1 is fastened to the underneath supporting structure as described previously, in particular with the tread portion 1 p of the component 1 rested upon the horizontal (or substantially horizontal) portion of the support 7, and fastened to said horizontal portion by means of mechanical hooks 1 f and 1 b. Furthermore, the engagement portion of male type 16 of a component 1 will be housed in the engagement or housing portion of male type 17 of the subsequent component 1, in particular of the component arranged higher and immediately after the previous component 1. In this way, the tread portion 1 p of each component 1 will define the portion which can be stepped on of a big step, whereas the riser portions 1 aa and 1 ab of two components 1 will define the resting or back portion of a big step. As anticipated previously, even in this case the components 1 can have lengths and sizes variable according to needs and/or circumstances. In particular, components of type A (80×40 cm) are provided, that is with depth P of the tread portion equal to 80 cm and height H of the riser portion equal to 40 cm, as well as of type B (80×50 cm) or of type C (100×50 cm) or even of type D (100×62.50 cm). The length L of the components could vary according to the needs or circumstances, the typical length being equal to 7.50 m. Depending upon the sizes of the components (of the format thereof) the sizes (cross-sections) of the sloped beams 24, as well the wheel base thereof, and the sizes of the support 7 will vary.

At last, with reference to FIGS. 13 and 13 a it can be noted that the space between two adjacent components (along the same big step) can be sealed by using a suitably shaped rubber sealing 26 comprising, in particular, a portion apt to be housed in the space defined between two end stoppers 14 of two adjacent components. Alternatively, the same space can be sealed by injecting therein sealing material, such as silicone.

In case then one uses the eyebolts 1 g engaged in the bushings 1 f, the hole of the same bushings opposite to the bolt 1 b could be sealed by means of a stopper 23 made of rubber or plastic inserted by pressure at least partially in said bushing.

Details related to the possible cross measurements of the component according to the present embodiment are shown in FIG. 14.

By means of the previous description of the embodiments of the present invention represented in the drawing figures it has been then demonstrated that the present invention (in particular the component 1 according to the present invention) allows achieving the predetermined objects. In particular, the present invention allows implementing a module apt to implement stands with big steps which has its own reduced weight (thanks to the use of relatively light and resistant metallic materials, such as sheets or the like), which can be easy to handle, which is resistant and able to support adequate loads, which can be implemented in a simplified way and with reduced costs (by means of using traditional construction materials which can be processed even in a non-industrial way), which is easy to be assembled and that is which can be assembled by means of relatively easy and quick operations and therefore with reduced costs (in particular thanks to the solution providing to implement on each module or component two engagement portions, one of male type and one of female type), which is easy to be moved (raised, transported, etc.), which has an outer pleasant aspect, compatible with the aesthetical needs of venues of a certain prestige (the precision assembly obtained thanks to mutual hooking of modules and components by means of the male and female engagement portions thereof allows giving the stand a particularly uniform final aspect), which offers the adequate guarantees in terms of safety and comfort for spectators (for example by means of the anti-slip treatment, but event thanks to the fact that the modules or components comprise both a tread portion and one or two riser portions). In particular, the production of the modules or components according to the present invention could take place by tailored cut, drilling, die folding, welding of the sheet cores or of the components made of sheet, welding of the housings of bolts (positioned on the lower plate) as well as block welding on the previously performed holes.

Although the previous description relates to the embodiments of the present invention represented in the enclosed drawing figures, the present invention is not limited to the embodiments described previously and represented in the enclosed drawing figures. On the contrary, all variants and/or modifications which appear clear and immediate to the person skilled in the art fall within the object of the present invention. The object of the present invention is then defined by the claims. 

1. A component for implementing a stand for sport venues, said component comprising at least a main module apt to be placed upon a bearing structure so as to implement a portion of a big step of said stand, said main module having substantially L-like cross-section and thus comprising a first tread portion defining a substantially flat surface apt to be stepped on by the spectators and a second riser portion comprising a substantially flat surface extending from said tread portion and defining with said tread portion a predefined angle, said main module comprising an upper plate or foil and a lower plate or foil, both made of metallic sheet and substantially shaped like a L, wherein said upper and lower foils are mutually joined so as to define said tread and riser portions, each one of said tread and riser portions comprising an inner space comprised between corresponding portions of said upper and lower foils or plates.
 2. The component according to claim 1, wherein connecting metallic members are placed in said inner spaces so as to connect mutually said upper and lower plates or foils.
 3. The component as claimed in claim 1, wherein said inner spaces are filled up at least partially with a polyurethane foam.
 4. The component as claimed in claim 1, wherein said main module comprises a first engagement portion of male type and a second engagement portion of female type apt to house an engagement portion of male type.
 5. The component as claimed in claim 4, wherein said engagement portion of male type extends from the free end of said first riser portion opposite to said tread portion and in that said engagement portion of female type is obtained in an end portion of said tread portion opposite to said riser portion.
 6. The component as claimed in claim 4, wherein said first engagement portion extends from a portion of metallic sheet of said riser portion joining said lower and upper plates.
 7. The component as claimed in claim 4, wherein said second engagement portion of female type is defined by a lowering of said lower plate or foil obtained near the free end of said tread portion opposite to said riser portion.
 8. The component as claimed in claim 1, wherein said main module comprises metallic reinforcing members applied to said lower and upper plates, respectively, at the opposite end portions of said main module and placed inside the inner space of said tread portion.
 9. The component as claimed in claim 8, wherein two first metallic reinforcing members are connected to said lower and upper plates, respectively, at the first end portion of said main module and in that two second metallic reinforcing members are connected to said lower and upper plates, respectively, at the second end portion of said main module opposite to said first end portion.
 10. The component as claimed in claim 8, wherein said first metallic reinforcing members are mutually connected therebetween by means of cross steel members and in that said second reinforcing metallic members are mutually connected one to another by means of steel cross members.
 11. The component as claimed in claim 1, wherein said component comprises a first infilling stopper inserted at least partially between said upper and lower plates so as to infill a first end portion of said main module and a second infilling stopper inserted at least partially between said upper and lower plates so as to infill a second end portion of said main module opposite to said first end portion, said first and second infilling stoppers apt to prevent rain water infiltrations or the like inside said inner space.
 12. The component as claimed in claim 11, wherein said first and second infilling stoppers comprise, each one, a portion localized outside said inner space of said main module and in that said first and second infilling stoppers comprise, each one, a cross lowering obtained in said outer portion.
 13. A component for implementing a stand for sport venues, said component comprising at least a main module apt to be placed upon a bearing structure so as to implement a portion of a big step of said stand, said main module having substantially Z-like cross section and thus comprising a first tread portion defining a substantially flat surface apt to be stepped on by the spectators, as well as a first riser portion and a second riser portion, both comprising a substantially flat surface and extending from opposite ends of said tread portion so as to define, each one, with said tread portion a pre-defined angle, said main module comprising an upper plate and a lower plate, both made of metallic sheet and with substantially Z-shape, wherein said upper and lower foils are mutually joined so as to define said tread and riser portions, said tread and riser portions comprising, each one, a corresponding inner space (spy), (spx) and (spz) comprised between corresponding portions of said upper and lower foils or plates.
 14. The component according to claim 13, wherein said upper foil comprises a tread portion as well as a first riser portion and a second riser portion extending from the opposite ends of said tread portion so as to give said upper foil said substantially Z-like shape, in that said lower foil comprises a tread portion, as well as a first riser portion and a second riser portion extending from opposite ends of said tread portion so as to give said lower foil said substantially Z-like shape, in that said tread portions are placed at a minimum mutual distance (d2) so as to define said inner space (spy) of said tread portion of said module, in that said riser portions are placed at a minimum mutual distance (d1) so as to define said inner space (spx) of said riser portion of said module and in that said riser portions are placed at a minimum mutual distance (d3) so as to define said inner space (spz) of said riser portion of said module.
 15. The component according to claim 14, wherein said upper foil comprises two opposite end portion and extending respectively from said riser portions, in that said lower foil comprises two opposite end portions extending respectively from said riser portions and and in that said upper foils are fastened one to the other one on one side at said end portions and on the other one at said end portions.
 16. The component according to claim 15, wherein said end portions at least partially are overlapped and mutually fastened one to the other one by means of weldings and in that said end portions at least partially are overlapped and fastened one to the other one by means of weldings.
 17. The component according to claim 13, wherein said main module comprises a first engagement portion of male type and a second engagement portion of female type apt to house an engagement portion of male type.
 18. The component as claimed in claim 17, wherein said engagement portion of male type extends from the free end of said first riser portion extending from said tread portion and in that said engagement portion of female type is obtained in an end portion of said riser portion extending from said tread portion.
 19. The component as claimed in claim 18, wherein said engagement portion of male type is implemented by means of properly folded-up portions of said end portions, respectively, and in that said engagement portion of female type is implemented by means of properly folded-up portions of said end portions, respectively.
 20. The component according to claim 13, wherein said module comprises a first infilling member inserted at least partially between said upper and lower plates so as to infill a first end portion of said main module and a second infilling stopper inserted at least partially between said upper and lower plates so as to infill a second end portion of said main module opposite to said first end portion, said first and second infilling stoppers being apt to prevent infiltrations of rain water or similar members inside said inner spaces (spx, spy, spz).
 21. A stand for sport venues, said stand comprising a bearing structure anchored to the ground, wherein said stand comprises at least a component as claimed in claim 1 anchored to said bearing structure by means of anchoring means apt to anchor said main module to said bearing structure so as to implement at least a portion of a big step of said stand.
 22. The stand as claimed in claim 21, wherein said bearing structure comprises at least two parallel and oblique main beams, from each one thereof a supporting member extends with a substantially horizontal supporting portion and in that said at least a component is positioned on said supporting structure so that the tread portion of said at least a component is rested upon said horizontal portions of said supporting members.
 23. The stand for sport venues as claimed in claim 21, wherein said stand comprises at least two components arranged on said supporting structure so that the engagement portion of male type of one of said components is engaged in the engagement portion of female type of the second one of said at least two components.
 24. The stand for sport venues as claimed in claim 21, wherein said stand comprises at least two components arranged one adjacent to the other one in the direction transversal to said at least two main supporting beams. 